Information Exposure Affecting xen package, versions <4.14.0-r2


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.05% (21st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALPINE316-XEN-2844922
  • published28 Nov 2020
  • disclosed10 Nov 2020

Introduced: 10 Nov 2020

CVE-2020-28368  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 xen to version 4.14.0-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xen package and not the xen package as distributed by Alpine. See How to fix? for Alpine:3.16 relevant fixed versions and status.

Xen through 4.14.x allows guest OS administrators to obtain sensitive information (such as AES keys from outside the guest) via a side-channel attack on a power/energy monitoring interface, aka a "Platypus" attack. NOTE: there is only one logically independent fix: to change the access control for each such interface in Xen.

CVSS Scores

version 3.1